1dialect The latch of a door or gate.
Recorded earliest in "clicket-lock", "clicket key".
2dialect, rare A catch, holdfast, bolt, etc., that fastens something by falling or springing into position.
Middle English. From Anglo-Norman cliket, cleket, clequet, kliket and Middle French cliquet, clicquet leper's rattle, clap-dish, latch, bolt, clapper of a mill, chatter, nattering, (plural) a type of rattle or castanet, lid of a container from Old French cliketer.
To make, or cause something to make, a click or clicking sound; = "click".
Late Middle English (in an earlier sense). Originally from clicket.